TWI569889B - Rubber gun holder elastic preload structure - Google Patents

Description

Rubber gun bearing bracket elastic preloading structure

The invention relates to the technical field of hand tools, in particular to an elastic preloading structure of a glue gun carrier which increases the assembly stability of the glue gun assembly.

The structure of the conventional glue gun generally comprises a gun body, a bracket mounted on the front end of the gun body, a fixing piece disposed between the gun body and the carrier bracket, and a lock attached to the inner side of the bracket. The piece and the plurality of locking pieces and the fixing piece are screwed to the locking component of the gun body. A predetermined stress is applied between the bracket and the gun body through the fixing piece.

The end face of the conventional fixing piece and the bearing bracket is easy to be flattened due to the tolerance of the production process of the carrier, such as the thickness of the baking varnish, the thickness of the plate, or the flatness of the plate, etc., so that the bracket and the fixing piece cannot be flattened. There will be too much or too little spacing. When the gap between the carrier bracket and the fixing piece is too large, the bearing bracket will be shaken relative to the gun body. On the other hand, if the bracket and the fixing piece are too close together, the inconvenience of the rubber can installation and the lack of rotation adjustment of the carrier are also caused.

In view of the above problems and deficiencies of the prior art, the main object of the present invention is to provide an elastic preloading structure of a glue gun carrier by means of a structure The design overcomes the lack of inconvenience and assembly of the conventional glue gun components without adding components.

According to the above object of the present invention, an elastic preloading structure of a glue gun carrier is proposed, and the glue gun comprises a bracket, a fixing piece and a gun body serially connected in series. The end surface of the bracket that abuts the fixing piece has a plurality of elastic portions integrally formed. By the composition of the above-mentioned members, a pre-stressing force is provided through the elastic portions to abut against the fixing piece through the elastic portion, thereby preventing the bearing bracket from being connected to the gun body due to tolerances in the production process, because the gap is too large This causes the bracket to be shaken, or excessively tight, resulting in the lack of support bracket adjustment and inconvenient installation of the canister.

10‧‧‧ bracket

12‧‧‧Locks

122‧‧‧Lock shaft hole

124‧‧‧Lock sheet perforation

14‧‧‧ bracket end face

142‧‧‧Bracket shaft hole

16‧‧‧Flexible Department

162‧‧‧ activity slot

164‧‧‧Elastic film

20‧‧‧Fixed tablets

22‧‧‧ positioning ring

24‧‧‧Positioning column

26‧‧‧Perforation

30‧‧‧ gun body

32‧‧‧Lock end face

322‧‧‧Keyhole

324‧‧‧Positioning holes

Figure 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is an exploded perspective view of the embodiment shown in Fig. 1.

Figure 3 is a partial schematic view of the embodiment shown in Figure 2.

Fig. 4 is a view showing another perspective of the embodiment shown in Fig. 1.

Fig. 5 is a cross-sectional view taken along line 5-5 of Fig. 4;

Hereinafter, the embodiment of the elastic preloading structure of the glue gun carrier of the present invention will be further described with reference to the related drawings. For the purpose of understanding the embodiments of the present invention, the same components are denoted by the same reference numerals.

Referring to Figures 1 to 3, the glue gun comprises a bracket 10, a fixing piece 20 and a gun body 30 in series, wherein the bracket 10 is matched with a locking piece 12 ( The conventional method is connected to the fixing piece 20 and the gun body 30; wherein the bracket end surface 14 abutting the fixing bracket 20 has at least one bracket shaft hole 142 and a plurality of elastic portions 16. The locking piece 12 has a locking plate shaft hole 122 corresponding to the bracket shaft hole 142 and a plurality of locking piece holes 124 disposed along the locking plate shaft hole 122.

As described above, the elastic portions 16 are disposed on the bracket end surface 14 along the bracket shaft hole 142, and are distributed in a center of the bracket shaft hole 142, and include (including but not limited to) a cross shape, a shape of a triangle, or a triangle. Provide multiple pre-stresses of multiple passes. The elastic portion 16 has a movable slot 162 and an elastic piece 164 suspended along the extending direction of the movable slot 162, wherein; One end of the elastic piece 164 is fixed to one end of the movable groove 162, and the other end of the elastic piece 164 is a free end extending in the extending direction of the movable groove 162, suspending over the movable groove 162 and protruding from the bracket end surface 14. In implementation, the free ends of the elastic pieces 164 are disposed (as shown in FIG. 3), preferably above or below, or vice versa.

The fixing piece 20 (known in the art) has a positioning ring portion 22, a plurality of positioning posts 24, and a plurality of through holes 26. The positioning ring portion 21 is protruded from the front end surface of the fixing piece 20, and provides a set position of the bracket shaft hole 142, and has a fixing piece shaft hole concentrically. Each of the positioning posts 24 is protruded from the rear end surface of the fixing piece 20. Each of the perforations 26 is formed through the fixing piece 20, respectively.

The gun body 30 (known in the art) is used to provide a user's grip and to apply driving force. The gun body 30 has at least one locking end surface 32 for locking the bracket 10 and a plurality of locking holes 322 and positioning holes 324 formed on the locking end surface 32. The positioning holes 324 are respectively matched with the positioning posts 24 of the fixing piece 20. The locking holes 322 are matched with the perforations 26 of the fixing piece and the locking pieces perforations 124 of the locking piece 12 to provide a locking element locking and locking.

Therefore, the above is a description of the elastic preloading structure of the glue gun carrier bracket, the components of each part and the assembly manner according to a preferred embodiment of the present invention. The operating characteristics of the embodiment of the present invention are further described below.

Referring to FIGS. 4 to 5, the positioning post 24 of the fixing piece 20 passing through the rear end surface corresponds to the positioning hole 324 of the gun body 30, so that the fixing piece 20 can be quickly positioned against the locking end surface 32 of the gun body 30. The bracket 10 (locking piece 12) can be engaged with the positioning ring portion 22 of the fixing piece 10 through the bracket shaft hole 142, so as to facilitate the positioning of the bracket 10, and then cooperate with the locking component to extend the locking piece of the locking piece 12. After the perforations 124 and the through holes 26 of the fixing piece 20 are screwed into the locking holes 322 of the gun body 30, the assembly of the carrier 10, the fixing piece 20, and the gun body 30 is completed.

When the bracket 10, the fixing piece 20, and the gun body 30 are locked, when the bracket end surface 14 of the bracket 10 abuts against the front end surface of the fixing piece 20, the elastic piece 164 of the elastic portion 16 provides elastic preload. The tolerance of the bracket end face 14 of the carrier bracket 10 is such that the bracket 10 can be properly connected to the gun body 30.

The above description is only the preferred embodiment of the present invention, and is intended to clarify the features of the present invention, and is not intended to limit the scope of the embodiments of the present invention. </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt;

10‧‧‧ bracket

14‧‧‧ bracket end face

142‧‧‧Bracket shaft hole

16‧‧‧Flexible Department

162‧‧‧ activity slot

164‧‧‧Elastic film

Claims (6)

An elastic preloading structure of a rubber gun bearing bracket, the glue gun comprising a bracket, a fixing piece and a gun body serially connected in series; wherein; the end surface of the bearing bracket abutting the fixing piece has a plurality of The integrally formed elastic portion provides a pre-stressing force when the bracket is abutted against the fixing piece through the elastic portions. The elastic preloading structure of the glue gun carrier of claim 1, wherein each of the elastic portions has a movable slot and an elastic piece; one end of the elastic piece is fixed at one end of the movable slot, and the other end is free. The end extends along the extending direction of the movable slot and overhangs the active slot. The elastic preloading structure of the glue gun carrier according to the second aspect of the invention, wherein, when the elastic portions are disposed above and below, the free ends of the elastic pieces of the elastic portions are arranged to be opposite to each other. The elastic preloading structure of the rubber gun bearing bracket according to the second aspect of the invention, wherein each elastic portion is disposed at the left end and the right side, and the elastic end of each elastic portion is disposed at the free end, which is left and right opposite . The elastic preloading structure of the glue gun carrier according to any one of claims 1 to 4, wherein each of the elastic portions is disposed around a center of an end surface of the bearing bracket abutting the fixing piece, Provides an amount of elastic pre-pressure above a plurality of passes. The elastic preloading structure of the glue gun carrier according to claim 5, wherein each of the elastic portions is configured in a cross shape, a cross shape or a triangle shape.